Mill for grinding or crushing cotton-seed or the like.



` y n. R. NULEN. MILL FOR GfRINDING 0R CRUSHING COTTON SEED 0R`TH` UKE.

n Patented My 1917..A

APPLICATION FILED SEPT. |916.

` `UNITED STATES PATENT OFFICE.

ROBERT RUFUS NOLEN. OF DALLAS, TEXAS.

MILL FOR GRIDING OR. CRUSHING COTTON-SE 3D 0R THE LIKE.

1 .22h-Nm.

Specification of Letters Yateiit..

Patented May 1,1917.

Application filed September 7. 1916i Serial No 118,868.

l 'o all whom t may concern.'

lie it knowii that I. llonnirr 1l. Xoi.i:1\', :i eitizen ot the lniteilhtates. residing;r at

. Dallas. in the eount v ot' Dallas and State ot' 'l`exas have invented Certain new and uset'ul Iinprovenientsl in Mills Jfor Grindingr or rilshinw totton-heed or the like, ot which the tollowing is a speeil'ieation.

My invention relates to iuiprovenients in n1ills,ftor grinding or crushing' iiiaterial.

surli as cotton-seed. lnseed or the like. and` has particular referenee toineans t'oi' eliininatuurr the liainuierinlgr or liai-ring); aetioii or- ,dinarily present during the operation of sueli` mai-Innes.

In the oidinar v uiill for -s frindingr or erushiug rotten-seed, linseed or the like. a pluralitiv of vertirallv niovalile horizontal rolls are Varlanpsfeil one aliove the other, in contacting relation. rl"he lowerniost. roll supportsor earries the eoiuhined weight of the upperrrolls, which are adapted to uirtake .of'lestrleted vertieal movements.

l`l"ie-sliaft earlving they lowerniost i'oll. as far asi ain aware. luis heretol'ore heen jour- `iiiiled through stationary or lixed hearings.

`It: was found that eoiisiderahle power was necessary to operate these ernsh'ing;r mills, and `to overeoine this disadvantage, it was p'rolmsed'to provide thei` shaft ot' the` lowerlike, a.certainamount of foreigny mattei' `iiivalliably present, siieh as'hard liodies,

eomprising-niiil, and .bits of iron, stone, 'or Ythe li'ke. 'lhese'hard li'odies passing between the rolls, eause the pounding oi' hammering effect upon tlice hearings, above Deferred to.

I` have discovered that `if the hearings for the shaft,ofthe,lowerinost rollY are. vieldingly supported, such pounding or haininering action i s` absorber, andjtlie life of the. hearings,thereby pi'ololigeil. 'In this inanner, ball'vor roter hearings may he advantageously einployed,f\vhile the invention is in no senserestrieted to any particular forni of bearings.

ln the aeeonipi'iirving drawings forming a part of this speeilieation aiul in whieh like nuuierals are einploi'ed to designate like pai-is throughout the saine,

Figure 1 is i side elevation of apparatus embodying thl invention,

Fig. 2 is au enlarged traginentaiv side elevation oi tl e saine,

.rludes diagon: l liars li. extending;r from the top to the hottoui thereol. A\rran,l 1ed he tween these iiagonal hars are preferably vei'tieal `guide iiieaiis or lguide-hars 'i'. iiieluded in the traine The lower ends of the `luide-lian'y T are pret'einhlv lient outwarrllv. lt'orn ine: horizontal portions S. (Minier-ted with these horizontal portions 8 and the hottoii ot' the "traine 5 are lowervertieal guide iueansoi' guide-liars 9, asv

shown.

`\ertieall`v iiovahly mounted within the guide nieans u' het'iveeii the guide-hars 9 are hearings itl. ivliirh iiiay lie ot'- :in v well known or preferred type. while the}v are pieferahlv ot the hall or roller type. Each liearinLY l() eonipi'ises a hotly portion or t'tl'tillg' ll. \\'l|it'li i'ontaits with the guidihars il. .\i'ran`ed within the eastings il are thehalliearings proper l. through ivliieh are iol riialed the .ends of the shaft lil ot' the lowelniost roll ll. rl`he hody port.ion or fastin I ll o'lf eaeh hearing l() rests upon or is su ported h v a transverse sup- .port-har l5.-prel'eralil v provided upon its upper surfaee with a rurved re'ress. to reeeive the lower endol the hotly portion il, as shown. 'll e support-har 13 has suitahle `eoiineetion willi siiitalili' still' roinpi'ession springs li'. engaging a lower support-har 1& whieh engines the bottoni ot the traine. lt is thus alpareut that the hearings l() are Ivieldinefl)V supporter-l in a iiiain'ier to perniit. of tluir pei'eeptihle vertieal inovenient. springs l'geigzaging the tops ot' the heal'- rl`he, rehound shoeks are ahsorlud'hy ings 10 and t` ie horizontal extensions S.

.\rranged aiove the roll 1l are rolls 19,

these rolls contacting one with the other, whereby the roll 14 carries or supports the entire weight 'of the upper rolls. The upper rolls are provided with shafts 23, journaled through vertically movable bearings 24, operating between the guide-bars 7. The bearings 24 may be ball or-roller bearings, or any other suitable form of liearings. l

The shaft 13 receives its rotation from a pulley 25, and alternate shafts 23 receive rotation from pulleys 2G, it being linden stood that these rolls may be driven by any other suitable means.

The cotton-seed or the like is fed into the uppermost trough from. a hopper 2S, and passes between the uppermost p ai of rolls. By means of the succeedingr-troughs 27, the material is caused to tavel beneath each succeeding lower roll, until it is dis* charged from the lowermost roll.

It is apparent that during the operation of the machine, the upper rolls must be free to move vertically, to permit of the passage of the seed or the like therebetween. together with the solid bodies7 such as pieces of solid material. The lowermost roll being yieldingly supliorted. such yielding;r 'neans properly absorbs the poundimglf and hammering, caused b v the passage of the solid bodies between the rolls, which would otherwise be transmitted to the roller shafts and their bearings.

It is to be understood that the form of my invention herewith shown and described is to be taken as a preferred example of the same, and that various changes in the shape, size, and arrangement of parts may be re.- sorted to without departing from the spirit of my invention, or the scope of the subjoined claims.

Having thus described my what I claim is:

1` In a machine of the character described. a frame comprisingr guide means, a plurality of superposed rolls arranged to contact one with the other whereby the lowerniost roll supports the weight ofthe upper rolls, a shaft carried by the lowermost roll, vertically movable bearings for the shaft arranged within the guide means, springs arrangedv beneath the vertically movable bearings to support them, springs arranged above the bearings to oppose their upward movement-and take up rebound shocks, means whereby the. upper rolls may move vertically' with-\respect to the lowermost roll, means to feed material to be treated between the rolls, and means to drive the rolls. i

2. In a. machine of scribed,

invention,

lthe character dea frame comprising guide means,

a plurality of s uperposed rolls arranged combined to contact one with the other whereby the lowermost roll supports the combined weight of the upper rolls, a shaft carried by the lowermost roll, vertically movable bearings for the shaft, blocks arranged beneath the lowermost bearings to contact therewith7 springs arranged beneath the` blocks to normally move the same -upwardly7 springs arranged above the lowermost bearings to contact therewith and to contact willi a part of the frame to oppose ||p\ var l movement and take up rebound shocks. means whereby the upper rolls may move. with respect to the lower rolls. means to feed material to be treated between the rolls7 und means to drive 'the rolls.

3. ln a machine of the character de scribed, a frame comprising' guide means. a. plurality oi superposed rolls arranged to contactone with the other whereby the lowermost roll supports the combined weight of the upper rolls. a shaft Icarried by the lowermost roll: bearings for the shaft; guides ltor 'the lowermost bearings. said guides .being substantially wilcr than the guide means for the upper bearings whereby the said guides haveV upper horizontal portions. said bearings having' their tops formed flat and theirdower l'aces rounded; blocks having concave upper` faces adapted to contact with the rounded faces of the bearings, springs to move the blocks upwardly, springs to bear between the tops .of the` bearings and the horizontal portion of the guide to oppose the upward movelnent of the bearings to talv'e up rebound shocks, a hopper to feed material to the rolls; and means to drive the rolls.-

-L ln a machinefor grinding seed coning;r frame; a plurality of crushingr rolls mounted `in the frame, one above the other ill contactingr relation. so that the combined weight of the upper rolls is carried by the lowermost roll, each roll being perma-V 'nently vertically movable with respect to in presence of two witnesses.

ROBERT Burns NoLnN.

'taining hard foreign particles; an upstandl 

